the argument it was first called with and uses it if none is
specified. Also fix a few minor formatting errors and
regen bulleted lists in the .man.in files.
* No need to explicitly end a macro with No before |
because | counts as middle punctuation
and falls out of the macro, anyway.
* No need to explicitly re-open in-line macros after |
because | counts as middle punctuation
and the macros resume afterwards, anyway.
* Simplify the mnemonic remarks regarding the option letters,
no need for manual font and spacing control with No and Ns.
* Trim Ns No to just Ns, it already implies No.
resemble GNU usage wrt long options. Sync usage and man page
SYNOPSYS sections and improve long options in the manual pages.
Now that we have long options we don't need to give the mnemonic
for the single-character options in the description.
